Pipe coupler



oct. `16, 1923., 1,411,045 l D. w. MAUPIN ET AL Pm: coUPLEn Filed Dec. 20'. 1922 Patented Get. 16.1.1923'.1 'i i* Y i Prrn oournnn. Appncaann 'ined Deeaber 20, 192e.. serial No. 608,042.

v' 1/ 'o all whom t may concern: Y ,n f 6 of thesleeve member. The interior tubu- Be itl known that We, DnX'rnRl/V. MAUrin lar vmember vis, tapered intermediate the -en-` andjRAYMoND C. TEEGARDEN, citizens'ol the larged and reduced portions "andf e'teriorly United States, residing at Bouldeninithe threaded ias at'7 saidthreads being' adapted i .5 countvof BoulderfandL State of Colorado,L to oo=mate tviththe interior threads 8 of the l have invented certain nevv and useful lm-` sleevepart.y The end of the reduced portion" ,Y provements in Pipe Couplers; and' We'V`V dofll of kthe interior tubularrnemher 9 ista'p-.-

hereby declare thelfolloiving to a full, clear, ered and eXteriorly threadedas at 13.7* f n iV Q0 Y- and'exact description ofV the invention, suchA 'Av tapering bushingA is provided'having 10 as will enable others skilled inthe art fto` e 1teriorv ythreadsfadapted to co-matewith the. ',whichuit` appertains Vto lk make and usek the interior threads '3. of the sleeve part IancljY same.

hav'ingrits bore tapered @and 'exteriorly pling'device for pipes. Theparts are so.proportionedfthatthe 'enf'y l5 The object 2of the present invention is to. largedhore part 12 of the sleeve*issuhstan-v provide a device'oiA the character `indicated tially the length of the enlargedcylindrical for anT and alllrinds of rods Vor pipes,` repart"v 10 of. the interior memberplus vthe This inventionrelates tolaniinprove'd conf-.k'th're'adedfasat f u t 65y i vquiring no Washers-orpacking,'and supplyflength of theV taperedy exteriorly threadedl 70 i ing its ovvngive and take, thereby doing vrpart 7 Vof said membe v ,p Y v 0 away with the left hand threadentirely. 'In use the interiormember is screwed back n The invention consists inthe novel con# into-the sleeve as is illustrated .in Fig.r 2.1 struction, arrangement and Acon'ihinations. of The fcouplingcan then be fitted into a pipe Y parts as hereinafter more particularly desystem leyV removin !a portion of pipeofa 7,5 4scribed and claimed. 1 c j length'equal to the engthof the 'fitting-and .95 :One sheet of drawings accompanies*y this threadingboth of the adjacent ends of pipe specification as part .thereof `in Which like in the usual manner Withan ordinary 'right reference characters refer to y similar parts hand threaded diegl `Anordinary coupler is throughout. Y y c th'enf secured to onefpipe end'which will re-i SeV Y Figure 1 is aside elevation-'ofv the imce'ive thetapered and e/Xtferiorly threaded 30 proved-coupling; and r Y c end 13 rof' the interior member Whilej the f Fig. 2 is aplongtudinal Sectional fvieW 'threaded end ofthe other pipe `Will be re`V taken: on the line 2-2 ofFig'.. 1'. '1 Aceived intoybushing'A. Theinterior tubular The improvedk coupling consists'ofa sleeve memherwill ltighten simultaneously intothej85 'y parti provided with applurality of ,angine unionandinto the;tapered'fthreaded'part8 larly disposed faces 2 adapted to seat afjotthe sleeve for ingfa tightfjoint Without Wrenchor similar tool andzfurther provided lthe useofpcvvasliers.'or'vgaskets K Y v C j with, a restricted' bore 6 adjacent onevend Having thus fully'descrihed our invention, y andan enlarged bore Vl2 extending through- We claim: f .i 'y ff. 90 f out theV greater part of its length'saidvsleeve Vl. A couplingcomprising av sleeve having;

I lq being tapered and Vinteriorly threaded infaeylndriCalboregbearing intermediate its@ termediate the reduced'V horef and the eng ends, a Asecond cylindrieal bore bearing of i largedv bore l2 as at 8" and Vsaid sleeve bel less diameter? than theirst mentioned ad-r "fing further provided adjacentits otherend jacent one `end anda tapered threadedbore 95' with; a "tapered interiorly threadedl horefconneoting said bearing hores,,and.aslidahleV part 3. p i Y f A .a Vtubular member having a part adjaf'zentonek f' AAn interior-tubular member 9 is provided endfradapted tofit snuglyin said vintermehaving an enlarged cylindrical "pa'rt l() diate bore bearing'anda'part offlesser diain n adaptedv to co-inate in snug slidingengage-f-,eter adaptedftoitfsnuglyV in the terminal 17070 nientwvith the enlarged bore l2 of the sleeve Vbore bearing of the Yl-ileeve,'said tubularmein- "Q part'and isffurtherV provided with a reduced ber A being tapered (and,exteriorlythreaded p Y j lcylindrical portionjll adapted l'to co-matein intermediate saidftwoparts tomate with "if snng' sliding relation With-the reduced'hore the tapered threadedpartof the sleeve and mediate theV bushing V'and 'the Vtaperedthrezkulbeing further provided adjralcenf its end with i e tapered threaded pari: adapted feo cao-acl:

Ywith lan ordinary Ypipe' coupler.

Y Y 2. A device asgdescrbed 'r1 claim one 'with @..blrshlngd tllegendf or" they sleeveY opposite the reduced bearing bore and in which lche enlarged bearing bore of thefsleeve nter- Y Y1,471,645 v 

